1240543098 has 96 divisors (see below), whose sum is σ = 2932899840. Its totient is φ = 377667360.

The previous prime is 1240543097. The next prime is 1240543103. The reversal of 1240543098 is 8903450421.

1240543098 is a `hidden beast` number, since 1 + 24 + 0 + 543 + 0 + 98 = 666.

It is a super-4 number, since 4×1240543098⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240543097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1140711 + ... + 1141797.

It is an arithmetic number, because the mean of its divisors is an integer number (30551040).

Almost surely, 2^1240543098 is an apocalyptic number.

1240543098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240543098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466449920).

1240543098 is an abundant number, since it is smaller than the sum of its proper divisors (1692356742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240543098 is a wasteful number, since it uses less digits than its factorization.

1240543098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1240543098 is about 35221.3443525371. The cubic root of 1240543098 is about 1074.4938949546.

The spelling of 1240543098 in words is "one billion, two hundred forty million, five hundred forty-three thousand, ninety-eight".